title: Use of aflatoxin-producing ability medium to distinguish aflatoxin-producing strains of Aspergillus flavus.
abstract: Aflatoxin-producing ability medium was tested for its ability to distinguish aflatoxin-positive from aflatoxin-negative strains of Aspergillus flavus in naturally occurring populations from corn at harvest. All of the aflatoxin-positive strains and some of the aflatoxin-negative strains produced aflatoxins when cultured on cracked corn. Although the data indicate that aflatoxin-producing ability medium is not entirely reliable in distinguishing potential aflatoxin-producing strains of A. flavus from nontoxigenic strains, it is significant that the medium did not yield false-positives.
mesh_terms: D016604:Aflatoxin B1; D000348:Aflatoxins / Q000096:biosynthesis*; D001231:Aspergillus flavus / Q000302:isolation & purification / Q000378:metabolism*; D003470:Culture Media; D005069:Evaluation Studies as Topic; D005188:False Negative Reactions; D005189:False Positive Reactions
chemical_list: D000348:Aflatoxins; D003470:Culture Media; D016604:Aflatoxin B1